Rotary pump.



J. NOLL.

ROTARY PUMP.

APPLICATION FILED MAR. 11. 1910.

1,049,387.. Patented Jan. 7, 1913.

3? [Z W 1 e j Mm. 644% 522214 z no s'r WENT OF C :ronu norm, or new YORK, n. Y., ASSIGNOR 'ro norm rurir comrnnr, or new YoaK,

n Y., a conrona'rrou or NEW YonK.

ROTARY PUMP.

Specification of Letters Patent. Patented Jan. '7, 1913.

Application filed. March 11, 1910. Serial No. 548,573.

a bearing in the elbow b and also in the central hubs c of the stationary helical partitions cl; the hub of the last partition, or

f the one farthest away from the elbow being provided with an adjustable end or 60 thrust bearing 2'.

The moving active part of the pump consists of one or more fluid moving devices of paddle wheel form, each consisting of flat blades j, of which there may be any desired number, 65 extending from a central hub is, secured by a key, or otherwise, to the shaft h, and connected at their ends to an annulus Z so size as to rotate freely in the casing a and between the annular supports of the station- '70 ary helical partitions d; the said rotatable paddle wheels occupy the spaces between two of the partitions as fully sidewise as may be desired or deemed expedient. The shaft h is driven by any suitable source 75 power through a gear or pulley attached to its end which extends beyond its bearing in the elbow b. The helical partitions d are shown as consisting'of one full turn with the edges radially arranged included in a plane 80 which includes the axis of the pump, an

the width of the spaces between them equal to the longitudinal dimensions of the partitions, which if continued through the spaces would form a continuous helix of uniformv 35 pitch throughout the length of the pump. Of course it will be readily understood, without further illustrations, that the pitch and extent of the stationary helices may e varied in all or each of the partitions, the 90 construction here shown being now considered suitable for general purposes. The arrangement of and number of blades in the revolving paddles may also be varied, one modification being shown at Fig. 3, 95 in which the blades are at a slight angle to the axis, as at m, instead of being in planes therewith as shown in the main drawings.

The operation of the pump may be described as follows: Assuming it to be full 100 of a fluid, as water, the inflow occurring at the elbow end and the shaft rotated as indicated by the arrows, the fluid in the spaces between the stationary partitions will e carried around therein by the blades d and 105 will by molecular friction cause the fluid that is contained in the spaces in which the helical partitions are located to be also moved in the direction of the rotation of the wheels, and in so doing the fluid on the lead To all whom it may concern:

Be it known that I, JOHN Norm, a citizen of the United States, residing in the boroug of'Brooklyn, city of ew York, State 0 5 NewYork, have invented certain new and useful Improvements in Rotary Pumps, 0 which the following is a specification.

The rotary pump forming the subject of this invention partakes somewhat of t e character of fluid controlled or fluid controlling turbines, and involves as its general and main feature stationary helical artitions arranged in a cylindrical casing and revolving blades, of the nature of paddle wheels, located in the spaces between the helical partitions and carried by a centrally located shaft, the planes containing the blades being parallel, or substantially so, to the axis common to the shaft and the cylindrical casing. The helical partitions act as directors for the fluid, as it is carried around in the casing by the paddle wheels, to cause it to flow longitudinally through the casing, that is to say. the rotating motion imparted to the fluid by the paddle wheels is by the inclined surfaces of the helical partitions converted or translated into a longitudinal motion, or a motion approximating straight lines parallel to the axis 0 rotation of the paddles, but which may partake of a swirling or helical character in the flow of the fluid as it leaves the apparatus.

To more fully describe the invention and an embodiment of the structural features of the same, the accompanying drawings will now be referred to.

Figure 1 is a longitudinal elevation with the casing and some of the working parts in section. V Fig. 2 is a transverse section, taken on the line 2, 2, of Fig. 1, and Fig. 3 is a vertical sectional view through a slightly different form of paddle wheel, taken in a plane slightly removed from the center of the same.

The body of the pump consists of a casing a cylindrical in form, to one end of which is shown attached an elbow b and to the other end a section of pipe 0. At intervals through out the cylinder at are located helical partitions d provided with central hubs e an annular supports f formed to fit snugly in the casing a and held stationary therein y screws or bolts g. Axially arranged in the cylindrical casing a is a shaft, h, which has a: outermosthelical partitions th wheels slidably engaging the rings of the wheel which tends 0 cause a lateral flow elical partitions andthe inner surface of therefrom in both directions such flow bethe outer shell, to prevent water passing being resisted by t e Wedging action of the tween the-first and second named rings. helix atthe leading sideand assisted b that In a ump of the character described .3 of t e helix at the discharge side of each an outer shell, a plurality of spaced helical pad e Wheel The greatest efficiency speed partitions disposed therein and carryin at which the. moving parts of the pump are central hubs and outer rings fitting snugly riven will begoverned by the viscosity and within the outer shell, means rigidly con- 7 0t erconditions of the fluid acted upon. necting the outer rings and shell, a shaft s e ore stated the number of paddle Journaled through the central hubs, and whee s employed may be varied as desired paddle Wheels rigidly mounted on the shaft If one only be used then it will be placed etween the helical partitions, said paddle etween two helical partitions. If. more w eels comprising ,paddle arms carryin an one be used then e moving and staouter rings fitting suitably siiu ly between tionary devices of the pump; will alternate the rst namec rings, whereby the working an preferably a stationary helix will 00 parts aie SIIbJGCtBCl to the minimum amount cupy the endsiof the assemblage of paddle friction and leakageis prevented, and adwheels and partitions. ustable means to regulate the extent of end claim: thrust of the sha t. V

30. 1. In a pump of the character described, In testimony whereof, I have hereunto an outer shell providedat bot ends with in subscribed my name. wardly extending flanges, helical partitions JOHN N OLL.

isposed in the outer shell and carrying cen- Witnesses:

therings of the I engaging the in- V tral hubs an outer rings, EUGENE DELMA,

AUGUST TROST. 

